/Engine/Plugins/Animation/IKRig/Source/IKRigEditor/Public/RigEditor/IKRigController.h
Add a suffix as needed to ensure the Goal name is unique.
[FName](API\Runtime\Core\UObject\FName) GetUniqueGoalName ( const [FName](API\Runtime\Core\UObject\FName) NameToMakeUnique ) const